362 lines
9.1 KiB
C++
362 lines
9.1 KiB
C++
/*************************************************************************/
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/* test_math.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "test_math.h"
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#include "camera_matrix.h"
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#include "math_funcs.h"
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#include "matrix3.h"
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#include "os/keyboard.h"
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#include "os/os.h"
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#include "print_string.h"
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#include "scene/main/node.h"
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#include "scene/resources/texture.h"
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#include "servers/visual/shader_language.h"
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#include "transform.h"
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#include "ustring.h"
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#include "variant.h"
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#include "vmap.h"
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#include "method_ptrcall.h"
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namespace TestMath {
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void test_vec(Plane p_vec) {
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CameraMatrix cm;
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cm.set_perspective(45, 1, 0, 100);
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Plane v0 = cm.xform4(p_vec);
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print_line("out: " + v0);
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v0.normal.z = (v0.d / 100.0 * 2.0 - 1.0) * v0.d;
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print_line("out_F: " + v0);
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/*v0: 0, 0, -0.1, 0.1
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v1: 0, 0, 0, 0.1
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fix: 0, 0, 0, 0.1
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v0: 0, 0, 1.302803, 1.5
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v1: 0, 0, 1.401401, 1.5
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fix: 0, 0, 1.401401, 1.5
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v0: 0, 0, 25.851850, 26
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v1: 0, 0, 25.925926, 26
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fix: 0, 0, 25.925924, 26
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v0: 0, 0, 49.899902, 50
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v1: 0, 0, 49.949947, 50
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fix: 0, 0, 49.949951, 50
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v0: 0, 0, 100, 100
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v1: 0, 0, 100, 100
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fix: 0, 0, 100, 100
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*/
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}
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uint32_t ihash(uint32_t a) {
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a = (a + 0x7ed55d16) + (a << 12);
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a = (a ^ 0xc761c23c) ^ (a >> 19);
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a = (a + 0x165667b1) + (a << 5);
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a = (a + 0xd3a2646c) ^ (a << 9);
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a = (a + 0xfd7046c5) + (a << 3);
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a = (a ^ 0xb55a4f09) ^ (a >> 16);
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return a;
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}
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uint32_t ihash2(uint32_t a) {
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a = (a ^ 61) ^ (a >> 16);
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a = a + (a << 3);
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a = a ^ (a >> 4);
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a = a * 0x27d4eb2d;
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a = a ^ (a >> 15);
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return a;
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}
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uint32_t ihash3(uint32_t a) {
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a = (a + 0x479ab41d) + (a << 8);
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a = (a ^ 0xe4aa10ce) ^ (a >> 5);
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a = (a + 0x9942f0a6) - (a << 14);
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a = (a ^ 0x5aedd67d) ^ (a >> 3);
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a = (a + 0x17bea992) + (a << 7);
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return a;
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}
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MainLoop *test() {
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print_line(itos(Math::step_decimals(0.0001)));
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return NULL;
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{
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Vector<int32_t> hashes;
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List<StringName> tl;
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ObjectTypeDB::get_type_list(&tl);
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for (List<StringName>::Element *E = tl.front(); E; E = E->next()) {
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Vector<uint8_t> m5b = E->get().operator String().md5_buffer();
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hashes.push_back(hashes.size());
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}
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//hashes.resize(50);
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for (int i = nearest_shift(hashes.size()); i < 20; i++) {
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bool success = true;
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for (int s = 0; s < 10000; s++) {
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Set<uint32_t> existing;
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success = true;
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for (int j = 0; j < hashes.size(); j++) {
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uint32_t eh = ihash2(ihash3(hashes[j] + ihash(s) + s)) & ((1 << i) - 1);
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if (existing.has(eh)) {
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success = false;
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break;
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}
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existing.insert(eh);
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}
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if (success) {
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print_line("success at " + itos(i) + "/" + itos(nearest_shift(hashes.size())) + " shift " + itos(s));
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break;
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}
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}
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if (success)
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break;
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}
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print_line("DONE");
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return NULL;
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}
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{
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// print_line("NUM: "+itos(237641278346127));
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print_line("NUM: " + itos(-128));
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return NULL;
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}
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{
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Vector3 v(1, 2, 3);
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v.normalize();
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float a = 0.3;
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//Quat q(v,a);
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Matrix3 m(v, a);
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Vector3 v2(7, 3, 1);
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v2.normalize();
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float a2 = 0.8;
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//Quat q(v,a);
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Matrix3 m2(v2, a2);
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Quat q = m;
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Quat q2 = m2;
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Matrix3 m3 = m.inverse() * m2;
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Quat q3 = (q.inverse() * q2); //.normalized();
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print_line(Quat(m3));
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print_line(q3);
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print_line("before v: " + v + " a: " + rtos(a));
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q.get_axis_and_angle(v, a);
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print_line("after v: " + v + " a: " + rtos(a));
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}
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return NULL;
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String ret;
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List<String> args;
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args.push_back("-l");
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Error err = OS::get_singleton()->execute("/bin/ls", args, true, NULL, &ret);
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print_line("error: " + itos(err));
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print_line(ret);
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return NULL;
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Matrix3 m3;
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m3.rotate(Vector3(1, 0, 0), 0.2);
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m3.rotate(Vector3(0, 1, 0), 1.77);
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m3.rotate(Vector3(0, 0, 1), 212);
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Matrix3 m32;
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m32.set_euler(m3.get_euler());
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print_line("ELEULEEEEEEEEEEEEEEEEEER: " + m3.get_euler() + " vs " + m32.get_euler());
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return NULL;
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{
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Dictionary d;
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d["momo"] = 1;
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Dictionary b = d;
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b["44"] = 4;
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}
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return NULL;
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print_line("inters: " + rtos(Geometry::segment_intersects_circle(Vector2(-5, 0), Vector2(-2, 0), Vector2(), 1.0)));
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print_line("cross: " + Vector3(1, 2, 3).cross(Vector3(4, 5, 7)));
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print_line("dot: " + rtos(Vector3(1, 2, 3).dot(Vector3(4, 5, 7))));
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print_line("abs: " + Vector3(-1, 2, -3).abs());
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print_line("distance_to: " + rtos(Vector3(1, 2, 3).distance_to(Vector3(4, 5, 7))));
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print_line("distance_squared_to: " + rtos(Vector3(1, 2, 3).distance_squared_to(Vector3(4, 5, 7))));
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print_line("plus: " + (Vector3(1, 2, 3) + Vector3(Vector3(4, 5, 7))));
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print_line("minus: " + (Vector3(1, 2, 3) - Vector3(Vector3(4, 5, 7))));
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print_line("mul: " + (Vector3(1, 2, 3) * Vector3(Vector3(4, 5, 7))));
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print_line("div: " + (Vector3(1, 2, 3) / Vector3(Vector3(4, 5, 7))));
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print_line("mul scalar: " + (Vector3(1, 2, 3) * 2));
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print_line("premul scalar: " + (2 * Vector3(1, 2, 3)));
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print_line("div scalar: " + (Vector3(1, 2, 3) / 3.0));
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print_line("length: " + rtos(Vector3(1, 2, 3).length()));
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print_line("length squared: " + rtos(Vector3(1, 2, 3).length_squared()));
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print_line("normalized: " + Vector3(1, 2, 3).normalized());
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print_line("inverse: " + Vector3(1, 2, 3).inverse());
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{
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Vector3 v(4, 5, 7);
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v.normalize();
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print_line("normalize: " + v);
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}
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{
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Vector3 v(4, 5, 7);
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v += Vector3(1, 2, 3);
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print_line("+=: " + v);
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}
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{
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Vector3 v(4, 5, 7);
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v -= Vector3(1, 2, 3);
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print_line("-=: " + v);
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}
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{
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Vector3 v(4, 5, 7);
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v *= Vector3(1, 2, 3);
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print_line("*=: " + v);
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}
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{
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Vector3 v(4, 5, 7);
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v /= Vector3(1, 2, 3);
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print_line("/=: " + v);
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}
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{
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Vector3 v(4, 5, 7);
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v *= 2.0;
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print_line("scalar *=: " + v);
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}
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{
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Vector3 v(4, 5, 7);
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v /= 2.0;
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print_line("scalar /=: " + v);
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}
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#if 0
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print_line(String("C:\\momo\\.\\popo\\..\\gongo").simplify_path());
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print_line(String("res://../popo/..//gongo").simplify_path());
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print_line(String("res://..").simplify_path());
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DVector<uint8_t> a;
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DVector<uint8_t> b;
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a.resize(20);
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b=a;
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b.resize(30);
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a=b;
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#endif
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#if 0
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String za = String::utf8("á");
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printf("unicode: %x\n",za[0]);
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CharString cs=za.utf8();
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for(int i=0;i<cs.size();i++) {
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uint32_t v = uint8_t(cs[i]);
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printf("%i - %x\n",i,v);
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}
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return NULL;
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print_line(String("C:\\window\\system\\momo").path_to("C:\\window\\momonga"));
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print_line(String("res://momo/sampler").path_to("res://pindonga"));
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print_line(String("/margarito/terere").path_to("/margarito/pilates"));
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print_line(String("/algo").path_to("/algo"));
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print_line(String("c:").path_to("c:\\"));
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print_line(String("/").path_to("/"));
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print_line(itos(sizeof(Variant)));
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return NULL;
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Vector<StringName> path;
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path.push_back("three");
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path.push_back("two");
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path.push_back("one");
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path.push_back("comeon");
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path.revert();
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NodePath np(path,true);
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print_line(np);
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return NULL;
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bool a=2;
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print_line(Variant(a));
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Matrix32 mat2_1;
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mat2_1.rotate(0.5);
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Matrix32 mat2_2;
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mat2_2.translate(Vector2(1,2));
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Matrix32 mat2_3 = mat2_1 * mat2_2;
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mat2_3.affine_invert();
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print_line(mat2_3.elements[0]);
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print_line(mat2_3.elements[1]);
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print_line(mat2_3.elements[2]);
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Transform mat3_1;
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mat3_1.basis.rotate(Vector3(0,0,1),0.5);
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Transform mat3_2;
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mat3_2.translate(Vector3(1,2,0));
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Transform mat3_3 = mat3_1 * mat3_2;
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mat3_3.affine_invert();
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print_line(mat3_3.basis.get_axis(0));
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print_line(mat3_3.basis.get_axis(1));
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print_line(mat3_3.origin);
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#endif
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return NULL;
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}
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}
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